<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div>
        <label>电话:</label>
        <input type="text" autocomplete="off" placeholder="请输入手机号" name="name" id="phone" onblur="yanzheng()">
        <button>Submit</button>
        <script src="input.js"></script>
    </div>
</body>
</html>